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Name
Chemistry 1020
Chemical & Physical Changes
A. Heating Solids
Compound
Initial Observation
Naphthalene A white solid
Copper(II)
sulfate
Sucrose
Iodine
Lab 2 | 1
Observation When
Heated
Naphthalene changes into
a vapor
Observation When
Cooled
Type of
Change
Evidence/Reasoning
Physical
change
There is no formation of a new
substance since heating
naphthalene only changes its state
from solid to gas and then back to
solid after cooling (sublimation )...
